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P1465 Engine Diagnostic Code

Another consequence of P1465 engine overheating may be a blown head gasket. Heat makes aluminum swell almost three times faster than cast iron. Thermal stress can distort the head and make it swell in areas that are hottest like those between exhaust valves in adjoining cylinders, and areas that have restricted coolant flow like the narrow area that separates the cylinders. The typical aluminum head swells most in the middle, which can crush the head gasket if the head gets too hot. This will usually cause the head gasket to leak compression between adjacent cylinders, or leak coolant into the cylinders.

P1465 engine code provides below are generic codes that may not apply to all vehicles.
Car manufacturer uses specific P1465 DTC code that are different
from the codes shown below. Foreign vehicles may also use DTC codes
different from the generic Engine Diagnostic codes.

P1465 Diagnostic Trouble Code Meaning And Solution

P

1

4

65

Powertrain Problem

MFG - Manufacturer Specific

Auxiliary Emission Controls

65 Engine Fault Code

Starting letter P diagnostic code shows that there are problems in engine, transmission and emissions systems.
If your "Check Engine Light" is on, it means your vehicle has one or more OBD II Trouble Codes so you have to check your engine diagnostic code tool.
If your vehicle is an older model with a non-electronic Auxiliary Emission Controls, you can check the distributor
cap to see whether the spark is getting from there to the coil and on to the spark plugs.

Don't forget ! If your P1465 engine code not resolved on
and there are trouble codes in your computer, your vehicle will not pass an OBD 2
emissions test. The light must be off and there must be no codes in memory to pass an OBD 2
emissions test. In addition, all of the OBD II self-monitors that check for faults must have run and
completed without finding any further problems to pass the test.